I am one of a few Blockchain Testing Experts. I combine my Blockchain expertise with more than ten years of experience in the test profession. I won the Rising Star Award for best idea in software testing: https://conference.eurostarsoftwaretesting.com/blockchain-framework-wins-inaugural-risingstar-award/
I helped the Dutch Railways experiment and innovate with blockchain technologies by initiating and guiding several blockchain initiatives. Info-Q Interview: Experiments with Blockchain at Dutch Railways https://www.infoq.com/news/2019/01/blockchain-dutch-railways